Washington, D.C. — The intraparty fight between California Democrats Brad Sherman and Howard Berman took another ugly turn Wednesday when two of Sherman’s colleagues cut robocall soundtracks accusing him of being an embarrassment and pleading with voters not to send him to Washington.

The bipartisan calls, one by Democrat Henry Waxman and the other by Republican Elton Gallegly, are the latest episode in an increasingly bitter Democrat on Democrat election that has featured personal attacks, a fight over who is more supportive of Israel and even a physical altercation earlier this month.

In his call, Gallegly says that "in my 13 terms in the United States House of Representatives, I’ve never made a recorded campaign call like this before.”

Pointing to Sherman’s altercation with Berman — in which he grabbed his colleague during a candidate forum — Gallegly argues “This is no way to behave … Please, do not send Brad Sherman back to Congress. His behavior is unacceptable.”

Waxman, meanwhile, labels Sherman’s campaign an “embarrassment” in his robocall and argues that “Sherman's aggressiveness is one of the reasons that almost all of his colleagues, including Senators Feinstein and Boxer, are supporting Howard Berman.”

“Please do not send Brad Sherman back to Congress. His behavior is unacceptable,” Waxman pleads with voters.

John Stanton is a senior national correspondent for BuzzFeed News. In 2014, Stanton was a recipient of the National Press Foundation’s 2014 Dirksen Award for distinguished reporting of Congress.